For this case, a number is defined ugly if it has prime factors consisting of only elements of x.
Find the nth ugly number.
so the ans is 15.
Unlike the previous two "ugly()" problems, in this one it appears that the number "1" is not considered ugly.
Return the 3n+1 sequence for n
First non-zero element in each column
Rotate input square matrix 90 degrees CCW without rot90
Symmetry of vector
Oh Zero Zero Zero!!!
Do they touch?
Abelian Sandpile - 02
Most Frequent Word - 01
Inscribed circle in a triangle
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